You would not use the terminology 1 1/2 thousandths but 15 ten-thousandths, which is written as 0.0015 in numerals.
15/10000 inch = 0.0015 inches
It is 0.0015 inches.
0.015 inches.
10 thousandths = 0.010
3/4 as a decimal is 0.75 inch
0.03 inch
It is 0.0015 inches.
0.015 inches.
10 thousandths = 0.010
.0005
1/2 = 0.5
1.5"
The thousandths place is the 3rd digit to the right of the decimal point. So 0.004" (where the " symbol means inches)
The answer is 0.0035 inch.
There are 500 in half an inch
Technically, the way the question is written, we can't tell whether you mean 0.700 or 0.00007 Assuming this is a tolerance specification in a machine shop or similar, it's probably stated in 'thousandths' of an inch, so the decimal is 0.700 inch
50/1000 inches in fraction form / 50/1000 = 5/100 = 1/20 = 0.05 in decimal form
0.030 inch; or 0.03 inch, three hundredths of an inch, to which it is equivalent. Think 30 X 1/1000; cancel a zero top and bottom to get 3/100, three hundredths (The first digit to the right of the decimal point is the tenths place, next right is the hundredths, and third right is the thousandths place. On the right side of the decimal, your number has to end in the named place, so '30' ends with its zero in the thousandths place. Thirty thousandths is 0.030. Three thousandths is 0.003 .)